diff options
Diffstat (limited to '')
| -rw-r--r-- | src/send.c | 6 |
1 files changed, 4 insertions, 2 deletions
@@ -49,7 +49,7 @@ void get_freq(int nibble, int* low, int* high) int send_tones(int low, int high) { #define GENERATE_TONE(tone) \ - sin(2 * M_PI * ((double)i / (SAMPLE_RATE / tone))) + sin(2 * M_PI * ((double)i / (SAMPLE_RATE / (tone)))) static UTYPE buffer[SAMPLE_RATE / 1000 * DURATION]; snd_pcm_sframes_t frames; @@ -57,7 +57,9 @@ int send_tones(int low, int high) size_t i; for (i = 0; i < N(buffer); i++) - buffer[i] = (GENERATE_TONE(low) + GENERATE_TONE(high)) * (SMAX / 2) - SMIN; + buffer[i] = (GENERATE_TONE(low * 1) + GENERATE_TONE(high * 1) + + GENERATE_TONE(low * 4) + GENERATE_TONE(high * 4)) * + (SMAX / 4) - SMIN; r = frames = snd_pcm_writei(sound_handle, buffer, N(buffer)); if (frames < 0) |